Characterization of Antibiotics and Antibiotic Resistance Genes on an Ecological Farm System

Table 1

Concentrations of antibiotics in the solid phase (μg g⁻¹ dried weight) and in the aqueous phase of the biogas slurry (μg L⁻¹) (mean ± SE).

Antibiotic	Fresh feces	Dried feces	Biogas slurry		Soil
			Aqueous phase	Solid phase
SAs
SMX	0.44 ± 0.21^a	BDL	5.30 ± 0.72	0.05 ± 0.01^b	0.01 ± 0.00^b
SMT	0.45 ± 0.17^a	0.08 ± 0.01^b	1.83 ± 0.23	0.08 ± 0.01^b	0.01 ± 0.00^b
FQs
NFC	0.63 ± 0.19^a	0.20 ± 0.07^b	3.48 ± 0.77	0.46 ± 0.01^a	0.04 ± 0.01^b
OFC	0.79 ± 0.11^a	0.15 ± 0.02^c	2.63 ± 0.35	0.47 ± 0.04^b	0.03 ± 0.01^c
TCs
TC	7.31 ± 0.21^b	3.51 ± 0.64^c	25.40 ± 0.51	13.68 ± 0.62^a	0.06 ± 0.01^d
OTC	0.95 ± 0.21^b	0.28 ± 0.08^c	13.05 ± 0.48	4.25 ± 0.43^a	0.02 ± 0.00^c
CTC	285 ± 0.21^b	57.42 ± 4.74^c	271.83 ± 6.91	407.19 ± 8.67^a	0.13 ± 0.02^d

BDL: below the detection limitation. The mean antibiotics concentration in solid sample followed by different letters indicates a significant difference at .